Molding-machine



(No Model.)

H. L. EAMES. Molding Machines.

No. 229,593. Patented July 6, 1880.

N-PETERS, FHOYO-LITHOGRAPHEfl. msmucn'op. D. c.

UNITED STATES PATENT OFFICE.

HORACE L. EAMES, OF BRIDGEPORT, CONNECTICUT.

MOLDING- MACHINE.

SPECIFICATION formingpart of Letters Patent No. 229,593, dated July 6,1880.

Application filed May 21, 1880. (No model.)

To all whom it may concern:

Be it known that I, HORACE L. EAIVI'ES, of Bridgeport,in the county ofFairfield and State of Connecticut, have invented certain new and usefulImprovements in Molding-Machines; and I do hereby declare that thefollowing, taken in connection with the drawings, is a full, clear, andexact description thereof.

In the drawings, Figure 1 is a front elevation, and Fig. 2 is a sideelevation, of the contrivance.

Prior to the date of my invention moldingmachines or presses, forcompressing sand around patterns in flasks were well known. Thesemachines may be divided into two classesone in which the flask is laidupon a carriage and then run under the platen of a press, which then iscaused to descend to compress the sand, the top of the carriage beingthe bed of the press; the other in which the flask is laid upon theplaten of the press, the press being provided with a bed which can beswung over the platen after the flask is in place, the sand beingcompressed by the upward movement of the platen. In the former case theflask is moved laterally prior to removal and replacement. In the lattercase the facilities for removal and replaeing the flask are afforded bythe lateral movement of the bed of the press, which lies above theflask.

My improvements are in the latter class of machines, and relate to themechanism for supporting the bed and aiding its lateral motion.

In the drawings, the frame of the press is represented at a a, theplaten at 12, its supporting and guide rods at c c, and the lever androck-shaft by means of which it is raised and lowered at d.

Any known way of supporting, guiding, and actuating the platen may beused in place of those represented in the drawings.

At the upper part of the press-frame there are two rails, e s, soshaped, substantially as shown, that they may support the wheels of thebed g, and may also, through the intervention of proper clasps, preventthe bed from rising when the platen is forced upward to compress thesand in the flask.

A platform, 9, which is the bed of the press, rests upon two segments ofwheels or two segmental wheels, h it, represented in the drawings asgrooved on their treads, which are pivto the platform. These cheeks orhangers project downward, and have attached securely to their lower endslong clasps k k, the upper sides of these clasps underlying the railsbefore named, the whole construction being such that the platform canmove laterally on the wheels (of which there are only two) over therails, while at the same time the long clasps prevent any tiltingmovement of the platform; and these same clasps prevent the platformfrom rising when the sand in the flask is compressed between thecarriage and the lower side of the platform. The clasps are necessary toprevent the platform from rising, as described, and by making them longenough, as shown, I am enabled to use two wheels only.

In the rails are two stops, k it, against which the front radial facesof the segmental wheels abut when the platform is in place over theplaten, and at the same time the two other radial faces strike againstthe under side of the carriage, thus insuring the stoppage of theplatform in its proper position. When the carriage is moved out of theway sufficiently in order to remove or put in a flask, as shown bydotted lines in Fig. 2, the front sides of the radial wheels strikeagainst the bottom of the platform and stop the movement thereof.

I prefer to make the segmental wheels of such size and form that theywill thus be stopped by striking against the platform 5 but they may bemade otherwise if still segmental, some other plan of stopping thecarriage (which is the platform with its wheels) being employed.

I also intend at times to use stops other than the platform itself, butattached either to the platform or to the hangers. The flask, or partthereof, is to be laid upon the platen the carriage is then to be runoverit; the lever is next to be worked and the sand compressed; theplaten is then to be lowered, the carriage run out laterally, so as toleave the flask exposed, and the flask can then be removed.

I claim as of my own invention 1. The combination of two segmentalwheels and two long clasps with a platform and with oted to hangers orcheekstt', properly secured the platen of a press by means of rails, theported and its extent of motion regulated, as combination beingsubstantially such as despecified.

scribed.

2. The combination, substantially as de- HORACE EAMES' 5 scribed, of aplatform provided with two seg- In presence ofmental wheels with rails,clasps, and stops ROBERT M. HOUSTON,

for the Wheels, whereby the carriage is sup- 0. E. BUOKMINSTER.

